LECTURE 23: Musculoskeletal Disease II Flashcards

1
Q

What is rickets?

A

Softening of bones due to failure to mineralize osteoid = osteomalacia

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2
Q

What are the things that cause pathogenesis with rickets?

A
  1. Deficiency of calcium
  2. Deficiency of vitamin D3
  3. Deficiency of P
  4. Malabsorption
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3
Q

What are clinical signs of rickets?

A
  1. Difficulty walking
  2. Soft, rubbery beaks and bones
  3. Palpable curved keel
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4
Q

Rickets occur in why kinds of birds?

A

Young birds

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5
Q

What are gross lesions of rickets?

A

Beading of ribs
Soft rubbery bones
Rib Fractures
Lateral deviation of sternum
Widened growth plates

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6
Q

Rickets causes what abnormality?

A

Growth plate (beading at the ribs)

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7
Q

What is Cage layer fatigue?

A

Osteoporosis - thin and brittle bones
Really common with caged layers

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8
Q

What are clinical signs of cage layer fatigue?

A

Paralysis or fractures/deviation of spine that damages spinal cord
Fractures of the leg, wing bone, and soft shell eggs

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9
Q

For rickets and cage layer fatigue what do you test?

A
  1. Histopathology
  2. Feed and water
  3. Bone samples
  4. Blood levels
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10
Q

What is spondylolisthesis?

A

Kinky back posterior paresis/paralysis

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11
Q

What is Tibial dyschondroplasia (TD)?

A

Cartilage plug in the growth plate

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12
Q

Where is TD most common?

A

Growing meat-type birds

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13
Q

What causes TD?

A

Genetic selection
Ca/P ratio
Metabolic acidosis
Incorrect acid base
**Does not generally cause lameness

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14
Q

What is perosis?

A

Slipped tendons (tendons go out of place)

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15
Q
A
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